x - y
i1 : tally {a,a,b,c} - tally {c,d,d} o1 = Tally{a => 2} b => 1 o1 : Tally
The source of this document is in /build/reproducible-path/macaulay2-1.25.06+ds/M2/Macaulay2/packages/Macaulay2Doc/functions/tally-doc.m2:142:0.